ORCID Profile
0000-0002-9570-9332
Current Organisations
The Hong Kong Polytechnic University
,
Princeton University
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Publisher: American Astronomical Society
Date: 30-04-2020
Publisher: Informa UK Limited
Date: 2022
DOI: 10.2147/NDT.S338133
Publisher: Cambridge University Press (CUP)
Date: 2022
DOI: 10.1017/PASA.2021.59
Abstract: We present the most sensitive and detailed view of the neutral hydrogen ( ${\\rm H\\small I}$ ) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Australian Square Kilometre Array Pathfinder (ASKAP) and Parkes (Murriyang), as part of the Galactic Australian Square Kilometre Array Pathfinder (GASKAP) pilot survey. These GASKAP-HI pilot observations, for the first time, reveal ${\\rm H\\small I}$ in the SMC on similar physical scales as other important tracers of the interstellar medium, such as molecular gas and dust. The resultant image cube possesses an rms noise level of 1.1 K ( $1.6\\,\\mathrm{mJy\\ beam}^{-1}$ ) $\\mathrm{per}\\ 0.98\\,\\mathrm{km\\ s}^{-1}$ spectral channel with an angular resolution of $30^{\\prime\\prime}$ ( ${\\sim}10\\,\\mathrm{pc}$ ). We discuss the calibration scheme and the custom imaging pipeline that utilises a joint deconvolution approach, efficiently distributed across a computing cluster, to accurately recover the emission extending across the entire ${\\sim}25\\,\\mathrm{deg}^2$ field-of-view. We provide an overview of the data products and characterise several aspects including the noise properties as a function of angular resolution and the represented spatial scales by deriving the global transfer function over the full spectral range. A preliminary spatial power spectrum analysis on in idual spectral channels reveals that the power law nature of the density distribution extends down to scales of 10 pc. We highlight the scientific potential of these data by comparing the properties of an outflowing high-velocity cloud with previous ASKAP+Parkes ${\\rm H\\small I}$ test observations.
Publisher: Elsevier BV
Date: 04-2019
DOI: 10.1016/J.JAD.2019.01.030
Abstract: Laughter Yoga (LY) is a group-based intervention involving simulated laughter, gentle stretching, rhythmic breathing and meditation. There is some limited evidence that LY reduces depressive symptoms over the short term. However, the quality of previous LY studies is poor and none involved working-aged people with a clinical diagnosis of depression. Therefore, this study aimed to investigate the feasibility and potential efficacy of LY for improving residual mood, anxiety and stress symptoms in adults diagnosed with depression. Fifty participants were randomised to the group LY intervention (n = 23) consisting of eight sessions over four weeks, or treatment-as-usual (n = 27). Participants completed the Depression Anxiety Stress Scale and the Short Form 12 item Health Survey at baseline (T0), post-intervention (T1) and at 3 months follow-up (T2). LY participants also completed a Client Satisfaction Questionnaire (CSQ8) at T1 and eleven participated in in idual qualitative interviews at T2. The LY group had statistically greater decreases in depression and improvements in mental health related quality of life compared to the control group from T0 to T1. The CSQ8 scores indicated a favourable level of satisfaction with the LY intervention. The qualitative interviews highlighted aspects of the intervention that were effective and those requiring modification. Limitations include the small s le size and treatment-as-usual control group. A full scale RCT of LY could be feasible if some modifications were made to the protocol/intervention. The intervention may be effective to improve depression and mental health related quality of life immediately post intervention.
Publisher: Oxford University Press (OUP)
Date: 14-10-2016
Publisher: Springer Science and Business Media LLC
Date: 25-06-2018
DOI: 10.1007/S00127-018-1555-5
Abstract: In the original publication of this article, Acknowledgements Section was not included. The Acknowledgements are given below. The original article has been corrected.
Publisher: SAGE Publications
Date: 05-2013
Publisher: Wiley
Date: 21-08-2019
DOI: 10.1002/GPS.5197
Abstract: To examine levels of knowledge about dementia and attitudes towards dementia in low- and middle-income countries (LMICs), identify sources to turn to for help, and explore the relationship between knowledge and attitudes. This mixed methods study with both quantitative (a cross-sectional survey) and qualitative (focus group interviews) components was conducted in Cambodia, the Philippines, and Fiji in 2017-18. A survey was completed by the citizens of the three countries, and two focus group interviews were conducted in each country to generate a context-specific understanding of dementia literacy within the local LMIC setting. The quantitative component utilized the Alzheimer's Disease Knowledge Scale and the Dementia Attitude Scale, while knowledge, attitudes, and views on seeking help for dementia was discussed in the focus group interviews (qualitative component). A total of 476 participants completed the survey. Another 54 participants (39 females and 15 males) were invited to join six focus group interviews to express their views on dementia. Positive attitudes were noted despite the level of dementia knowledge was low. Families and religious figures were viewed as the sources for help. Controlling for demographics, country-specific predictors of positive attitudes towards dementia were found. The involvement of family members and religious leaders in dementia education could enhance the recognition of dementia. Specific kinds of dementia knowledge should be targeted to educate the public in different countries.
Publisher: MDPI AG
Date: 20-08-2023
Abstract: The emergence of new coronavirus variants and evidence of waning immunity offered by COVID-19 vaccines draw attention to the need for regular vaccination. Vaccine hesitancy is one of the top ten threats to global health. There is a dearth of knowledge on people’s hesitancy to take regular COVID-19 vaccines. This study aimed to investigate the prevalence and determinants of hesitancy for regular COVID-19 vaccination. A population-based, random telephone survey was performed in Hong Kong in April 2022 (n = 1213). The age-standardized hesitancy rate for regular COVID-19 vaccines among Hong Kong adults was 39.4% (95% CI = 35.3–44.1%), exhibiting a sloping S-shape with age. Regression analyses revealed that females, young adults, self-perceived fair/bad health, low COVID-19 vaccine uptake, and believing there are better ways for prevention of infection were positive determinants of hesitancy for regular vaccination. Vaccine confidence, perceived severity and availability, trust in manufacturers and government, and civic duty inclination were negative determinants. Tailored vaccine promotions are needed for females, young adults, and people perceiving poor health and receiving fewer doses. Information on infection severity, vaccine availability, and trust in suppliers, products, and governments are key attitude-change facilitators to decrease hesitancy for regular COVID-19 vaccination and cope with future pandemics.
Publisher: Springer Science and Business Media LLC
Date: 02-06-2018
DOI: 10.1007/S00127-018-1538-6
Abstract: Depression literacy refers to the ability to recognize depression and make informed decisions about its treatment. To date, relatively little research has been done to examine depression literacy in the Western Pacific region. Given the pervasiveness of depression and the need to enhance mental health care in this region, it is important to gain a better understanding of depression literacy and health-seeking behaviors in this part of the world. This mixed-methods study utilized a convergent parallel design to examine depression literacy and the associated health-seeking attitudes among urban adults from three countries-Cambodia, Philippines, and Fiji. A total of 455 adults completed a quantitative survey on depression knowledge, attitudes, and professional help seeking. Separately, 56 interviewees from 6 focus groups provided qualitative data on their impression and knowledge of depression and mental illness within the context of their local communities. Overall, results showed that depression knowledge was comparatively lower in this region. Controlling for differences across countries, higher knowledge was significantly associated with more positive attitudes towards mental illness (B = - 0.28, p = 0.025) and professional help seeking (B = 0.20, p < 0.001). Financial stability, such as employment, was also a salient factor for help seeking. This study was the first to provide a baseline understanding on depression literacy and highlights the need to increase public knowledge on depression in the Western Pacific. Culturally congruent recommendations on enhancing depression literacy in this region, such as anti-stigma c aigns, use of financial incentives, and family-based approach in health education, are discussed.
No related grants have been discovered for Sau Fong Leung.